Improvement in metal-rolling machines



2 Sheets--Sheet I.

M. H. BRUOKSBANK. Metal-Rolling Machines.

N0.l50;l30. PatentedApril28,1874

2 Sheets--Sheet 2.

M. H. BRDDKSBANK. MtaI-Rollin'g Machines.

Patented April 28,1874.

MATTHEY BROOKSBAXK, OF XElVARlQ-NETV' JERSEY..

IMPROVEMENT IN METAL-ROLLING MACHINES.

Specification forming part of Letters Patent l\'o. liqbfiliimdated April 28, 1874 application filed January 31, 1874f To all whom itonayconccra: Be it known that I, MATTHEW H. BROOKS- BANK, of the city of Newark, State of New Jersey, have invented certain Improvements. 1n Rolling-Machines for more perfectly rolling and finishing roundbars of iron, steel, or

n other metal, of-which the following is a specification:

My invention consists of a new arrangement of that description of rollers which are called disk-rollers, revolving in centers parallel, but not on the samc'line, and running in opposite directions, for more perfectlyfinishing and turning round bars of iron, steel, or

' other metals, by subjectingsaid'bars of iron,

steel, or other metals to the peculiar action of plane-faced disks of chilled iron, whose plane faces revolve parallel to each other, but in op= posite directions, whereby said bars of metal are reduced to the condition. of true cylinders with smooth-finished surfaces, and equal di- I ameters throughout.

Figure 1, Sheet 1, is a front elevation of my and the general view of the frame for supporting the same.

The same letters have reference to the same parts in all the drawings. I will now describe the several parts'of my improved rolling-machine, and. its mode of v operation. A and 13, Figs. 1,2, 3, 4, are the two disk-rollers, made of chilled cast-iron or steel, their near faces being turnedtrue planes. The rollerA is mounted upon and securely attached to the solid shaft (J, and the roller B is mounted upon and securely attached to the hollow shaft D. The shaft 0 passes through the hollow shaft D, and is supported by the framing at E and F. The hollow shaft D is supported at G and H, Fig-s1, 2, and at. It

will be seen, by referring to Figs. 1 and 3, that the roller A, with its shaft 0, is somewhat higher than the rollerB and its shaft 1), the object of which I will explain presently. The

shaft O has a spur-wheel, I, keyed upon it, and

connected by means of the intermediate wheel attached by suitable couplings to the shaftN;

and the wheels M and K being both keyed on the shaft N, when the latter is turned in the direct-ion .of the arrows, the other gear-wheels and the two roller-shafts and fdisk-rolls willall revolve in. the direct-ion of the arrows marked'upon them. The disk-roller B is firmly held in its position endwise by the box 0-, let' in the frame G, and the collar P, Figs. 1 and- 2, and the other disk-roller, A,'is held in its position by means of the adjusting-screws S S and the box T at one end of the shaft 0, and'thc adjusting-screw R screwing through. the end of the box U against the other end of the shaft O. V and W are two pieces serving to tie the two parts of the framing E and G firmly together, and also support the guidebars X Z, which are firmly supported between the disk-rollers by the tie-pieces V and W. The tie-pieces V and V have apertures or guide-holes, through which the metal shafts to be rolled pass, and the mode of operation is as follows: Assuming that the disk-rollers V have been set the proper distance apart for the size of the round metal bars required, then I take a bar, I), partially prepared, either by a hammer or common rough-grooved. rolls, and brought toa rounding 'form and heated red hot, and pass the end through the aperture in. the tie-piece V in the direction of the arrows. As soon as theforward end of the bar is forced between the plane revolving faces ofthe diskrollers, it innnediately commences to revolve and advance in the direction of the arrows. It revolves because the two disk-rollers run in, opposite directions, and it advances because the roller'B is lower than the roller A. If

both rollers were of equal height, the barwould neither advance nor recede; but asthe roller B is lower than the roller A, the rcvolvroller B were lower, the bar would advance still more .wpidly. Thus the aetionof the diskrolls is a peculiar rolling rubbin g motion, admirably adapted to impart a finished surface, and aperfect cylindrical form. The two rollers are not necessarily obliged to 'be exactly the same diameter, but I. prefer them to be so. I n" the drawings one roller onlyis adjustable endwisc, Whereasby using similar means it will be evident that both rollers can be made so. It

will also be evident that the arrangement of,

the shafts and gearing can be altered so as to dispense with the hollow shaft, and connect the two disk-rollers by a shaft passing underneath or above, or in the front or the back side; but I prefer the arrangement as shown.

The patent of Jacob Reese, No.65,832 dated June 18, lsll-L descubed as an improvement in rolling and straightening cylindrical bars and tubes of iron, steel, or other metals, claims the use of conical-faced revolving disks, (not convex-faced, but disks whose faces are true cones or frustums of'coues, the object being to make ,the line of their bite entirely on one side of the apexes, as he asserts that if the faces were flat, and the line of bite exten'de'd across the face on both sides the centers, no valuable results could be secured, whereas I claim that by the use of plane-faced rollers;

in the same plane, revolving in opposite directions, said diskshaving recesses cut transvers'ely across their thread-formlng'faces for the special purpose of threading screws, which improved disks'are arranged to revolve 1n parallel planes uponshafts set in diflerent horizontal planes, and extending in opposite direetions. This is a machine especially intended for facilitating the threading of bolts by providingthe means for 'threading'two or more bolts at the same time, and dispensing with the necessity of shifting the dies at each operation, as in a former patented machine.

It will be observed that the improved disks, although mounted very similar to my plane .disks, have transverse recesses ent across their faces, and the nature of the work they are designed to accomplish is totally difi'erent to the plane smooth-faced disks which 1 use. Prossers machine, as claimed. being ineapable of doing the -wo rk which my machine is designed to do, and my machine, as claimed, being incapable of doing the work for which Prossers machine is adapted,flthey are, therefore, vitally different in their operation.

7 I claim-,

The combination of two disk-rollers of equal diameter, having true plane faces, made of chilled iron or steel, and revolving in opposite directions, with parallel faces and centers, but not in the same cent-er, driven by gearing, and mounted with adjustments, tic pieces, and

guide-bars, one or both rollers being adjustable, all substantially as described, and for the purposes above mentioned. I

MATTHEW II, BROOKSBANK.

Witnesses:

JOHN 1); Town, WM. S. HENSON. 

